Wow, way to insult a whole region. Marrying first cousins is more common, but they don't wear a hijab as children, and I'm my admittedly limited experience I haven't seen any obvious birth defects or flaws any more than other people.
Really, aren't all modesty laws subjugation? I say we all stop wearing any clothes. What better way to let the government know that we won't have them telling us we have to cover up. I mean, what gives them the right? So public decency laws are virtue signaling.